Sofia Sirak

Person

Norristown, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing homo- and copolymers of alkyl (meth)acrylates...
- Patent number 12,252,661
- Issue date Mar 18, 2025
- Evonik Operations GmbH
- Frank-Olaf Mähling
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Multifunctional wax dispersant for subterranean chemical applications
- Patent number 11,999,901
- Issue date Jun 4, 2024
- Evonik Operations GmbH
- Liang Xu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Vegetable oils with improved low temperature storage stability
- Patent number 11,421,180
- Issue date Aug 23, 2022
- Evonik Operations GmbH
- Sofia Sirak
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Antiwear copolymers and lubricant compositions
- Patent number 11,359,042
- Issue date Jun 14, 2022
- Evonik Operations GmbH
- Sofia Sirak
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymeric-inorganic nanoparticle compositions, manufacturing proces...
- Patent number 11,198,833
- Issue date Dec 14, 2021
- Evonik Operations GmbH
- Stephan Wieber
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Polymeric-inorganic nanoparticle compositions, manufacturing proces...
- Patent number 11,180,712
- Issue date Nov 23, 2021
- Evonik Operations GmbH
- Stephan Wieber
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymeric-inorganic particles useful as lubricant additives
- Patent number 10,954,466
- Issue date Mar 23, 2021
- Evonik Operations GmbH
- Sofia Sirak
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrogenated polybutadienes useful as lubricant additives
- Patent number 10,787,623
- Issue date Sep 29, 2020
- Evonik Operations GmbH
- Sofia Sirak
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
ETHYLENE VINYL ACETATE-BASED DISPERSIONS SUITABLE AS POUR POINT DEP...
- Publication number 20250011637
- Publication date Jan 9, 2025
- Evonik Operations GmbH
- Sofia SIRAK
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PROCESS FOR PREPARING LOW MOLECULAR WEIGHT POLYACRYLATES AND PRODUC...
- Publication number 20250002614
- Publication date Jan 2, 2025
- Evonik Operations GmbH
- Sofia Sirak
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PREPARING HOMO- AND COPOLYMERS OF ALKYL (METH)ACRYLATES...
- Publication number 20240043768
- Publication date Feb 8, 2024
- Evonik Operations GmbH
- Frank-Olaf Mähling
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS
- Publication number 20230416596
- Publication date Dec 28, 2023
- Evonik Operations GmbH
- Liang XU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS
- Publication number 20230348777
- Publication date Nov 2, 2023
- Evonik Operations GmbH
- Liang XU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYMERIC-INORGANIC NANOPARTICLE COMPOSITIONS, MANUFACTURING PROCES...
- Publication number 20210062106
- Publication date Mar 4, 2021
- Evonik Operations GmbH
- Stephan Wieber
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMERIC-INORGANIC NANOPARTICLE COMPOSITIONS, MANUFACTURING PROCES...
- Publication number 20200369977
- Publication date Nov 26, 2020
- Evonik Operations GmbH
- Stephan Wieber
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
VEGETABLE OILS WITH IMPROVED LOW TEMPERATURE STORAGE STABILITY
- Publication number 20200354646
- Publication date Nov 12, 2020
- Evonik Operations GmbH
- Sofia Sirak
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ANTIWEAR COPOLYMERS AND LUBRICANT COMPOSITIONS
- Publication number 20200262953
- Publication date Aug 20, 2020
- Evonik Operations GmbH
- Sofia SIRAK
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMERIC-INORGANIC PARTICLES USEFUL AS LUBRICANT ADDITIVES
- Publication number 20190264127
- Publication date Aug 29, 2019
- Evonik Oil Additives GmbH
- Sofia SIRAK
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HYDROGENATED POLYBUTADIENES USEFUL AS LUBRICANT ADDITIVES
- Publication number 20180245013
- Publication date Aug 30, 2018
- Evonik Oil Additives GmbH
- Sofia Sirak
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Sofia Sirak

Person

Patents Grantslast 30 patents

Process for preparing homo- and copolymers of alkyl (meth)acrylates...

Multifunctional wax dispersant for subterranean chemical applications

Vegetable oils with improved low temperature storage stability

Antiwear copolymers and lubricant compositions

Polymeric-inorganic nanoparticle compositions, manufacturing proces...

Polymeric-inorganic nanoparticle compositions, manufacturing proces...

Polymeric-inorganic particles useful as lubricant additives

Hydrogenated polybutadienes useful as lubricant additives

Patents Applicationslast 30 patents

ETHYLENE VINYL ACETATE-BASED DISPERSIONS SUITABLE AS POUR POINT DEP...

PROCESS FOR PREPARING LOW MOLECULAR WEIGHT POLYACRYLATES AND PRODUC...

PROCESS FOR PREPARING HOMO- AND COPOLYMERS OF ALKYL (METH)ACRYLATES...

MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS

MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS

POLYMERIC-INORGANIC NANOPARTICLE COMPOSITIONS, MANUFACTURING PROCES...

POLYMERIC-INORGANIC NANOPARTICLE COMPOSITIONS, MANUFACTURING PROCES...

VEGETABLE OILS WITH IMPROVED LOW TEMPERATURE STORAGE STABILITY

ANTIWEAR COPOLYMERS AND LUBRICANT COMPOSITIONS

POLYMERIC-INORGANIC PARTICLES USEFUL AS LUBRICANT ADDITIVES

HYDROGENATED POLYBUTADIENES USEFUL AS LUBRICANT ADDITIVES